Best Air Purifying Plants: a house log
We enjoy any excuse to buy more plants, and you may have heard they can improve your home’s indoor air quality. But before you blow your paycheck in the name of a healthier home, let us dive deeper into plants’ air purifying powers. We will share which plants we recommend and what benefits you can in fact expect from them.
We have heard for years about how plants act as natural air filters for your home. So let us dive a little deeper, shall we?
7 Air Purifying Plants
If you simply came here for a list, our go-to air purifying houseplants are bulleted below. The best part is these are all striking, low-maintenance plants. Many also appear on our best low-light indoor plants list too!
- Dracaena (including Corn Plant)
- Snake Plant
- Aglaonema
- English Ivy
- Pothos
- Bamboo Palm
- Spider Plant
There are certainly more that could be included here, but we narrowed it to the ones that are most frequently cited by experts AND the plants that we think look best too.
Do Plants Truly Purify The Air?
They do! Plants not only convert carbon dioxide to oxygen, but they also remove harmful VOCs like benzene and formaldehyde from the air. This was most famously proven in a 1989 NASA study. It is frequently cited as definitive evidence that plants are the secret to better air quality in your home. Unfortunately, the truth is a bit more complicated.
NASA’s closed lab conditions are not a good indicator of what plants do in real homes. Houses are not sealed, air-tight boxes. Your indoor air is regularly exchanged thanks to activities like opening doors and running HVAC systems. These do a much better job of improving air quality than any plant ever could. In fact, recent studies have concluded that you’d need hundreds or even thousands (!!!) of plants in your home to achieve the air purification levels reported by NASA.
What Benefits Do Houseplants Have?
Luckily, plants are still beneficial additions to your home – even if they are not air-purifying workhorses. Beyond their fairly aesthetics, they have a variety of psychological health benefits!
Plants Improve Mood
Spending time near houseplants has been scientifically proven to boost positive emotions and quell negative feelings in as little as 20 minutes. When compared to rooms without plants, people report everything from increased happiness, greater life satisfaction, and a more positive outlook.
Plants Reduce Stress
One study demonstrated that caring for plants was able to reduce stress in participants, as compared to a computer task. Another study showed that exposing hospital patients to plants – even pictures of them! – reduced their stress. And adding plants to a windowless office not only lowered stress, but increased productivity among some test subjects!
Plants Improve Productivity & Concentration
Some also say these improvements in mood and lowered stress assist us with productivity and concentration as well. A small study of elementary school students showed looking at plants increased their attentiveness and comfort in the classroom. Another study showed plants assist stave off “attention fatigue” during demanding office tasks.
We could go on, but we think that this shows there are more than sufficient reasons to justify your next plant purchase.
How To Purify Indoor Air
If plants are not your ticket to better indoor air quality, what is? Here are some pointers from experts at the EPA and American Lung Association.
Reduce pollutants coming in
The best thing we can do to improve air quality is not introduce pollutants in the first place. Eliminate or cut back activities like smoking and using natural gas stoves. Even burning candles or using fireplaces has been shown to decrease air quality. Pay attention to VOCs and off-gassing from products like paints, sprays, and even furniture and clothes. If a new product we buy ever has a noticeable “new” smell, we leave it outside in the sun to let it air out.
Open a window
Opening doors or windows for as little as 10 minutes a day is a strong way to let fresh air inside, since outdoor air is typically cleaner than indoor air. This is a free method that is recommended by experts even in the winter.
Purchase an air purifier
Home air purifiers do the job you hoped plants would. They are workhorses for removing dust, pollen, VOCs, and more. We have sworn by this air purifier for years and have several in our home. You can read more about why we enjoy it here.
Keep a clean house
Dust and dander can aggravate allergies, so regularly vacuuming, dusting, and washing bedding are strong ways to assist clear your indoor air. Also be sure to clean wet areas that might grow mold or mildew.
Change your HVAC filter
It is typically recommended that you change the filter on your heating and cooling system every 3 months. Put a reminder on your phone so you do not forget. We consistently keep a spare filter on hand so we have it ready! The second we pop the last one in, we order the next one.
Test for radon & carbon monoxide
Our first two homes had high levels of radon, a cancer-causing gas released from within the earth. We had to have mitigation systems installed in our crawl spaces. So whenever you move, use a low-cost at-home test kit to see if your location has high levels. We also recommend having a carbon monoxide detector to alert you to leaks of this deadly gas.
Shrink your plant collection
We know, you came here looking for new plants, not to be told to get rid of them. But remember that plants – when not properly maintained – can be counterproductive to your air-purifying goals. Wet soil and rotted roots can foster mold. Leaves collect dust. And, oh yeah, blooms may trigger allergies. So make sure your plant collection is not so large that you cannot care for them.
Plants For A Healthier Home
I feel like this post has been a buzzkill, so let us get back to the lively stuff: PLANTS! Now that we understand houseplants are good for us (simply not in the ways we thought) here are some of our faves. They are straightforward to care for, many are low-light tolerant, and guess what? You can still tell everyone they are purifying your air, because they are… simply a little bit.
Dracaena
Dracaena is the category of plant most frequently cited in that infamous NASA study. Three species were studied, including the popular corn plant (Dracaena fragrans ‘Massangeana’) as well as the dragon tree (Dracaena marginata), and two varieties of Dracaena deremensis (Janet Craig and Warneckii). We enjoy them because they are straightforward, affordable, and have vibrant green foliage.
Snake Plant
Snake plants are another especially popular, low-light tolerant plant that is technically a Dracaena also. NASA listed it by its old genus Sansevieria, but it is now classified as Dracaena trifasciata. They are special for their ability to convert CO2 overnight, making them better oxygen producers. But simply like their air purifying effects, you likely will not notice the difference, but people still like to put snake plants in their bedrooms for an overnight oxygen boost.
Aglaonema
Aglaonema are some of our go-to low-light tolerant plants (NASA uses the common name Chinese Evergreen in their study). Their big tropical leaves come in a variety of bright colors, and they are remarkably straightforward to care for. Again, their air-purifying skills might be dubious, but these sure are strong mood boosters in our home!
English Ivy
As one of the few vining plants in the NASA study, English ivy (Hedera helix) was one of its best performers in the lab environment. It is also quite straightforward to care for and tolerate low-light conditions.
Pothos
The other vining plant in the study – and our quite go-to houseplant – is the golden pothos (Epipremnum aureum). We have pothos varieties in nearly every room of our home because they are tough to kill (they are frequently called Devil’s Ivy) and look strong draping off a shelf or climbing atop a bookcase. Above you can see a golden pothos next to one of our neon pothos plants.
Bamboo Palm
Bamboo palms (Chamaedorea seifritzii) are strong indoor-friendly palms that can grow up to 8ft tall inside. They are a bit larger than another low-light variety, called parlor palms. We have so many palms outdoors in our part of Florida that we do not have any of these inside, but they are a strong way to inject a tropical vibe to any room.
Spider Plant
Spider plants (Chlorophytum comosum) are small, grassy houseplants that are especially popular because of their lush, variegated leaves. They are quite straightforward to care for and are a strong alternative to a pothos if you want something for a shelf or tabletop that does not vine.
More Plant Guides
If you are looking for more information on some of our go-to plants, check out some of these posts below:
- Best Low-Light Indoor Plants
- How to Propagate Succulents
- What Is Keiki Paste For Plants?
- Marble Queen Pothos Care Guide
- Neon Pothos Care Guide
- Golden Pothos Care Guide
- Aglaonema Care Guide
- Snake Plant Care Guide
- Fiddle Leaf Fig Care Guide
- Tree Philodendron Care Guide
- How to Build An Straightforward Plant Shelf
- Make A Hands-on Wire Trellis
- Protecting Outdoor Plants In A Deep Freeze
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